Sponge-holder for slate-pencils



(No Model.)

D... P. GOLES & J. H. LUGKI-IURST.

SPONGE HQLDER FOR SLATE -PENGILS.

No. 247,616. Patented Sept. 27,1881.'

. EL *Q W zi/www5 jwemmf UNITED STATES DAVID F. GOLES AND JAMES H. LUCKHURST, OF RAHWAY, NEWv JERSEY.-

PATENT OFFICE.

SPONGE-HOLDER FOR SLATE-PENCILS.

SPECIFICATION forming part of Letters Patent No. 247,616', dated September 27, 1881.

Application led April 23, 1881.

To all whom 'it may concern Be it known that we, DAVID F. GOLES and JAMES H. LUCKHURS'I, citizens ofthe United States, residing at Rahway, in the county of Union and State ofNew Jersey, have invented certain new and useful Improvements in Sponge-Holders for Slate-Pencils; and we do hereby declare the following to bea i'ull, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, and to letters or tigures ot reference marked thereon, which form a part of this specification.

This invention has for its object to furnish an attachment for slate-pencils, for holding a sponge for erasing the pencil-marks from the slate.

lt consists in a' holder in one end of which is formed a straight socket, which receives and retains the end of the slate-pencil, and in the other end of which is formed a bell-shaped socket, which receives and holds the sponge, and a spring IiXed to the bowl or socket, so that it will grasp and hold the sponge.

1n the drawings, Figure l shows the holder applied to a slate-pencil. Fig. 2 shows the sponge, havingacompacted portion made ready to be slipped into the holder Fig. 3 shows the spongesocket,'provided with a spiral spring arranged to receive and hold the sponge.

a. is the holder, made, by preference, of soft rubber, so that it will, by its expansive and contractile properties,more readily receive and retain the pencil and sponge, and so that it may be also employed to erase leadpencil marks.

The holder is provided in its smaller end a. with a socket, a2,into which the end of the pencil b can be thrust. When made of soft rubber the socket a2 is slightly smaller than, and so that it will expand to receive the end of, the

pencil.

The larger end c3 ot' the holder is provided with a socket or sponge-receiver, c4, which' is iiaring at its outer or open end, and is gradually contracted toward its inner end, so as to present a conical or bell-shaped space, into which a portion of the sponge c is compacted.

The sockets c2 and a4 are separated by a par- (No model.)

tition, c5, which prevents the head of the peneil from being pushed against the sponge, and it also gives greater strength to the holder, especiall)7 when the latter is made of soft rubber.

G is the sponge, which has a portion of one side compacted, ready to be thrust into the socket a4. When dry the sponge can readily be compacted into a small neck, c', which is jammed tightly into the socket. Being thus compacted it will not readily become wet when the outer portion, c2, is saturated.

The sponge may first be specially prepared by forming a neck, c', by wrapping it with thread,as shown in Fig. 3; but ordinarily such speciahpreparation is not necessary. Itis usual ly suttlcientto compacta portion ot'the sponge and then push this compacted neck into the socket.

The body c2 ofthe sponge projects laterally over the annular rim surrounding the open end of the socket c4. The annular rim serves as a bearing and compressing means, whereby the sponge is held more firmly in place as it is Inoved over the surface of the slate, and by which the water may be easily pressed from the central portion of the body c2 outward to the surface.

fis a spring made from asinglepiece of wire and formed into a conical-shaped coil corresponding to the shape of and fitting into the socket a4. The coils of the spring are arranged close to the wall ofthe socket. The spring is protected by, and when the sponge is inserted the coils are pressed firmly against, the wall of the socket. Theinner end of the wire composing the spring is bent vertically downward and enters a slot in the partition c5, and is made fast by a suitable pin. The outer end of the wire is carried outward horizontally from the upper end of the coil and into a smallopening, f', in the wall and near the outer end of the socket, where it is held loosely, so that it can have a slight movement back and forth in said opening. When the sponge-neckis pressed into the spring the coils expand outward and draw the eudf' inward. The coilis held lirml y within the socket by the end f', so that it cannot be drawn out ot' the mouth of the socket by any ordinary force exerted in erasing pencil-marks.

IOC)

The smaller end of the holder a', when made of soft rubber, is intended to be used as :t leadpeneil eraser; or, it' it be made of hard rubber, it een be provided with an annular soft-rubber ring7 e, which is retained in place by anyrwellknown means.

Having described our invention, what we claim, and desire to secure by Letters Patent, 1S-

A sponge-holder for slate-pencils, consisting of it head, a,provided in one end with the tubular socket a2, and in its opposite end with the inverted conical-shaped socket a4, separated from the socket a? by the partition a5, and the 

